Steam-boiler



UNITED sTATEs PATENT oEEIoE.

JOSEPH WOOD AND H. N. WINANS, OF JERSEY CITY, NEVlv JERSEY.

STEAM-BOILER.

Specification of Letters Patent No. 19,601, dated March 9, 1858.

To all whom t may concern.'

Be it known that we, JOSEPH lVoOD and H. N. l/VINANs, of Jersey City,Hudson county, in the State of New Jersey, have invented a new anduseful Improvement in Steam-Boilers; and we hereby declare that thefollowing is a full land exact description thereof.

. The nature of our invention consists in interposing a diaphragmreflector between the lire as it issues from the furnace into the smokebox and the exhaust steam, to save caloric and for other usefulpurposes.

To enable others to make and use our invention we proceed to describeits construction and operation, reference being had to one sheet ofdrawings hereunto annexed and making part of this specification.

Figure 1 is a transparent perspective of a boiler showing the positionof the diaphragm reflector. Fig. 2, partof the boiler at top lookingdown the smoke flue. Fig. 3, longitudinal and vertical section of theboiler. Fig. 4C, the flues of the boiler from which the fire issuesagainst the reflector. Fig. 5, transverse section of the boiler, showingwithin it the diaphragm A, and the space, B, around it.V

The same letters refer to the same things in all the drafts.

A is the diaphragm reflector; B, the space left open for the smoke topass; C, the steam pipe; D, the exhaust pipes.

To construct our diaphragm reflector for any ordinary boiler, say, thatof a locomotive, we make a plate of iron, A, of the form of the boiler,a few inches less in diameter, so that there will be a free space (B,Fig. 3) all around it and this constitutes the diaphragm. We place it inthe smoke box where the flame andsmoke issuing from the flues of thefurnace shall impinge upon it, so that the heat shall be reflected backagainst the boiler. The steam pipes, C, are brought down in this spacebetween the diaphragm and the boiler and are thus kept hot.

The smoke issuing from the furnace passes directly up into the smokestack, or it passes through the space, B, Fig. 5, to the other side oft-he diaphragm before entering the smoke stack. The exhaust pipes, D,are placed as usual, so that the exhaust steam will issue with thesmoke, but as they are on the other side of the diaphragm they do notquench the flame that would otherwise at times mingle with the exhauststeam, nor absorb the heat, as is usually the case.

The exhaust steam passes out of the smoke box up vinto the smoke stack,meeting the smoke from the furnace at the throat of the smoke pipe (seeFig. 2) and thus aiding the draft, after the smoke and flame have hadmuch of their caloric reflected back against the boiler. The draft beingbroken off from the exhaust, there is a more free and regular action ofthe draft.

The diaphragm is made a flat disk-for it is-made as desired.

Ve are aware that a slotted plate has been used in the smoke box but itdoes not prevent the draft interfering with the exhaust.

What we claim as our invention and desire to secure by Letters Patent isThe interposition of the diaphragm reflector, A, between the flues andthe exhaust for the purpose of protecting the exhaust from the draft andfor reflecting the heat back to the head the whole constructed andarranged substantially as above described.

JOSEPH WOOD. H. N. WINANS.

Witnesses:

OWEN Gr. WARREN, JOHN D. STIRTEVANT.

